Structure F-05-L · Garfield County, CO

I 70 Ml Wbnd over Colorado River

Carries I 70 Ml Wbnd over Colorado River, 1.9 Mi W Of Jct SH 13 (ri.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT505 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

505 ft end to end, longest span 110 ft: about 7 semi-trucks nose to tail. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built197551 years old
Length504.9 ft153.9 m
Daily traffic8,500counted 2020
Last inspectedOctober 2024every 24 months

Location

StateColorado
CountyGarfield
Location1.9 Mi W Of Jct SH 13 (ri
CarriesI 70 Ml Wbnd
CrossesColorado River
Coordinates39.52032, -107.81127

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length504.9 ft (153.9 m)
Max Span109.9 ft (33.5 m)
Deck Width44.6 ft (13.6 m)
Deck Area2093.0 sq m
Main Spans5
Year Built1975

Traffic

Avg Daily Traffic8,500 (2020)
Truck Traffic15%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure NumberF-05-L

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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